[Extensions] Convert some ChromeSyncExtensionFunctions

chrome/browser/extensions/api/identity/identity_api.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_API_IDENTITY_IDENTITY_API_H_
 #define CHROME_BROWSER_EXTENSIONS_API_IDENTITY_IDENTITY_API_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 300 matching lines @@
 
   IdentityGetProfileUserInfoFunction();
 
  private:
   ~IdentityGetProfileUserInfoFunction() override;
 
   // UIThreadExtensionFunction implementation.
   ExtensionFunction::ResponseAction Run() override;
 };
 
-class IdentityRemoveCachedAuthTokenFunction
-    : public ChromeSyncExtensionFunction {
+class IdentityRemoveCachedAuthTokenFunction : public UIThreadExtensionFunction {
  public:
   DECLARE_EXTENSION_FUNCTION("identity.removeCachedAuthToken",
                              EXPERIMENTAL_IDENTITY_REMOVECACHEDAUTHTOKEN)
   IdentityRemoveCachedAuthTokenFunction();
 
  protected:
   ~IdentityRemoveCachedAuthTokenFunction() override;
 
-  // SyncExtensionFunction implementation:
-  bool RunSync() override;
+  // ExtensionFunction:
+  ResponseAction Run() override;
 };
 
 class IdentityLaunchWebAuthFlowFunction : public ChromeAsyncExtensionFunction,
                                           public WebAuthFlow::Delegate {
  public:
   DECLARE_EXTENSION_FUNCTION("identity.launchWebAuthFlow",
                              EXPERIMENTAL_IDENTITY_LAUNCHWEBAUTHFLOW);
 
   IdentityLaunchWebAuthFlowFunction();
 
@@ skipping 12 matching lines @@
   // Helper to initialize final URL prefix.
   void InitFinalRedirectURLPrefix(const std::string& extension_id);
 
   std::unique_ptr<WebAuthFlow> auth_flow_;
   GURL final_url_prefix_;
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_IDENTITY_IDENTITY_API_H_